Improvement in pitcher-pumps



S. L. BIGNALL.

PITCHER-PUMP. .No. 180,190. V Patented July 25,1876.

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ATTEST I I INVENTDB /7@% A; @W

N. PETERS, FHOTO-UITNDGRAFMEH. WAHINGTOrL u c UNITED STATES PATENT OFFICE.

SOLOMON L. BIGNALL, OF CHICAGO, ILLINOIS.

IMPROVEMENT IN PlTCHER-PUMPS.

Specification forming part of Letters Patent N 0. 180,190, dated July 2' 1576; application filed May 8, 1876.

with the pump-handle, that the piston-rod mayhave a proper movement- The object is, by simple means, toprovide means for preventing water from being thrownup and out of the pump by the action of the piston. I

In the drawings, Figure 1 is a vertical section of a pitcher-pump, taken through the center ol' the spout.- Fig. 2 is an enlarged section, taken transversely to the spout of the pump and parallel to the pump-handle. Fig. 3 is a plan or top View of the, head-plate removed from the pump, corresponding in size to Fig. 1.

A represents the revolving cap of a pitcherpump of ordinary construction, and B represents the spout-section ;D, the spout; E, the

piston-rod; H, the set-screw lbrlustening the cap to section B, and I the support for the pump-handle.

Between the section B and the revolving.

cap A is formed an annular groove, suitable to support the edge of an annular head-plate, O, which covers the orifice in the top of the pump, except so much as the areaof the slot t'rom'a; to :0, Figs. 2 and 3, for the piston-rod E to work in. In order that the slot may always run parallel with the handle of the pump, a slot Z, Fig. 3, is made 'in the headplate, and anib or projection, Gr, on the under side of the revolving cap A, engages it and prevents the head-plate from turning.

I do not claim, broadly, the closing of the I ends of pitcher or other pumps; but

What Ifclaim is I I The head-plate O, placed between the revolving cap A and the'spout-section B, substantially as and for the purpose set forth.

SOLOMON. L. BIGNALL.-

Witnesses:

' G. L. UHAPIN,

THOMAS B. WHITTLESEY. 

